I believe because of its low population at the time, they were just assumed
They became a part of the union after they lost the civil war.
The war with Mexico resulted in California and the southwest territory becoming part of the United States.
The last 2 states added to the Union were Alaska and Hawaii.
Idaho is not.
The Colorado River forms part of the southwest boundary of the United States.
United States of America. Admitted to the Union on 6th January 1912 as the 47th State
The southwest United States has the most deserts.
Indiana was admitted to the Union on December 11, 1816 becoming the 19th state admitted to the Union.
Hawaii is in a category by itself. It is not part of the southwest.
Yes. AirTran will most likely become a part of Southwest.
Each former state had to reapply to become a part of the Union again.
The southern states were Confederate states. The northern states were part of the Union. :)